The following perfectly competitive market shown in the graph is In equilibrium. Price ($) S 100 D 90 80 70 60 50 50 40 30 20 10 8000 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 Quantity per period What is the value of the consumer, producer, and economic surpluses? Consumer surplus : $ Producer surplus : $ Economic surplus : $